Barrel-filter.



No. 699,2II.

Patented May 6,1902.

DE WITT MUSHEFL BARREL FILTER. (Application mea Feb. s, 1902.)

4(No Model.)

1n: Ntmms PETERS co. PgoYoLn-Ho., wAsHmarcN, n4 c.

UNITED STATES PATENT OFFTCE.

DE WITT C. MOSHER, OF COLORADO CITY, COLORADO, ASSIGNOR TO CHARLES M.MAONEILL, OF COLORADO'SPRINGS, COLORADO.

SPECIFICATION forming* part 0f LtbierS'PatentNO. 699,211, da.ted May 6,1902.

y Application iiled February 3, 1902. Serial No; 92,142. (No model.)

To all whom t may concern.-

Beit known that I, DE WITT C. MosHER, a

citizen of the United States, residing at Colorado City, inthe county ofEl Paso and State of Colorado, have invented certain new and usefulImprovements inrBarrel Filters, of which the following is aspecification.

My invention relates'to barrel-filters, and has for` its object toprovide an improved and simplified construction of such filters; and tothese ends my invention consists in the various features of constructionand arrangement of parts having the general mode of operationsubstantially as hereinafter more particularly pointed out. l

Referring to the accompanying drawings, Figure l is a sectionalperspective View of a filter-barrel, showing my improved filterinstalled therein. Fig. 2 is an enlarged transverse section of a portionof the barrel and filter, and Fig. 3 is an enlarged sectional View.

through the longitudinal axis of the barrel.

While my invention may be used for any purpose for which it is adaptedand may be modied in details of structure and arrangement to adapt itfor V,various purposes, itis primarilyintended for use in connectionwith chlorination-barrelswV The general purpose of the invention is toprovide a simple, cheap,

and effective structure which can be 'applied' to and used in suchbarrels and which shall occupy relatively little space therein and stillfurnish a satisfactory means of filtering and one which is not liable toget out of order.

' It is well known that chlorination-barrels as generally used are madeof metal and are so arranged as to be bodily rotated and have means forintroducingthe ore and chemicals and for delivering they filteredVmaterial;

These barrels are lined'with some resisting material, usually'lead,andthe filter is ar-' ranged to extend lengthwise ofthe barrel and tooccupy a position against'the inside lining, which extendsmor'e or lessaround the inner circumference thereof, and the barrels most generallyin use are provided with what is known as a platform-ilter,7 suchplatformfilter occupying a considerable space in the barrel, therebyreducing the amount of material which can be treated, and they are opento otherobjections, which need not be specified, but which it isdesirable to overcome.

Referring to the embodiment'of my invention illustrated in the drawings,A represents the barrel, which, as before stated, maybe of metal orother material and is provided with heads, one, B, of which is shown,and is also provided with suitable means of ingress for `the material,as the manhole C, and a discharge-outlet, as D, controlled by a suitablevalve, as Dv. The barrel, as is well known, lis usually provided withtrunnions and means for rotating it, which are not shown in thedrawings.

The interior ofthe barrel is lined throughout with some resistingmaterial E, as lead, andthe'barrel as thus far described is of the usualconstruction.

My improved filter comprises a number of independent filter plates orsections, which Y are made of some resisting material, preferably lead,and which are introduced into the barrel, as through the manhole C, andare subsequently united to each other and to the lining E of the barrelby being burned thereto. The plates or sections may be bent to conformto the contour of the barrel before being introduced, or subsequentlywhen in place they are bent so as to conform to the general circularcontour of the barrel, and preferably the plates or series ofplatesjoined together extend throughout the internal longitudinal length ofthe barrel. While these -plate's'may be of various sizes with relationto the barrel and to each other, I have found that in what -may betermed a ten-ton barrel itis convenient to make them rectangular inshape and of about sixteen inches in widthand seventy-two inches long,and in -Ithe drawings theplat-es FfF' F2 are so made.

Each 'plate or section vFis provided on its under surface or'thesurfaceadjacent the lead lining of vthebarrel with a seriesofstudlikeprojections f, and these are preferably formed integral withthe, plate and are uniformly distributed throughout its -under or outersurface. The plate is further provided with a series of perforations f',extending through the body of the plate'between the projections f, andthese perforations are preferably tapering, with their smallest ends onIOO the upper or inner face of the plate and their enlarged endsextending toward the outer edge of the plate and between the projectionsf. Bymaking the projections relatively small, so that there is a largenumber on the plate and there can, therefore, be a large number ofperforations between them I am enabledto dispense with the usual leadcloth or other filtering cloth used in chlorination-barrels aud utilizethe lead plate itself as a filtering medium, thus avoiding the necessityof making a su pporting-platform and covering it with afiltering-surface. In other words, in my filter I combine the supportand filter in a single structure or section, and by uniting a number ofthese sections a filter of the proper size can be made and one whichwill be selfsupporting and withstand the pressure and shocks due to thecharge of ore or other material in the barrel as it is rotated in theprocess of chlorination or otherwise. These plates or sections areprovided at their longitudinal sides with beveled edgesf2, so that whenthe plates are arranged side by side a V-shaped groove is providedbetween the adjacent plates, by means of which they can readily beunited by burning or soldering, as indicated. The ends of the sectionsor plates are also suitably formed, so that they can be united to thelead lining of the barrel, and I have shown the ends of the plates F asbeing provided with a'transverse rib f3, which may be burned to thelining E, as indicated, forming a close joint, preventing the fiow ofliquid beneath the filter except such as passes through the openings orperforations f'. This rib f3 may be beveled or inclined, as shown at theright-hand side of Fig. 2, or it may be at right angles to the plane ofthe filter, as shown at the left-hand side at f4, or it may be of anyother form `which will serve to readily be united with the lead liningby means of lead burning or soldering.

This filter, of course, extends over the outlet D, and in order toprotect the filter, as it would not be properly supported at the outlet,I provide an additional plate G of resisting material, which may beattached to the filter section or sections and burned thereto, as at g.

While other means of strengthening the filter-plate adjacent to theoutlet might be used, this furnishes a simple and effective means andenables the use of uniform filtersections, as the additional plate G canbe readily attached to the particular filter-section which is over theoutlet and the parts thereby strengthened.

The advantages of such a construction as that shown and described willbe apparent to those skilled in the art. In the first place, the platescan be readily made, as by casting or otherwise, and then whenintroduced into the barrel through the manhole, as indicated,

can he bent to conform to the exact contour of the inner side ofthe'lining of the barrel, and when they are arranged in order they canbe united to each other by burning or soldering at the V-shaped recessesmade by the longitudinal edges of the plates, and they can also befirmly and securely united to the barrel-lining by being burned alongtheir ends. Furthermore, the filter furnishes an extended surface, withmany minute perforations or filtering-points, which permit the fiow ofthe liquid therethrough between the bodies of the plates and innerlining, and the projections furnish a substantial support for the bodyof the plate and at the same time permit a free fiow of the liquid fromany and all of the perforations toward the outlet D, not onlycireumferentially, but lengthwise of the barrel. Furthermore, the innerface of the plates is smooth and free from projections and provided withminute filtering -perforations, through which the liquid can readilypercolate.

From the above description those familiar with the art will understandthe principles of construction and arrangement of my filter and be ableto utilize it to the best advantage, adapting it to the particular formor size of barrel or other vessel to which it is applied.

Having thus explained my invention, without limiting myself to theprecise details of construction shown and described, what I claim isl.Abarrel-filter comprising filter-sections, the plates having projectionson their outer sides and perforations through the plates arrangedbetween the projections and having beveled longitudinal edges, wherebythe adjacent sides of the sections may be united by burning,substantially as described.

2. The combination with the lead lining of a filter-barrel, of filtersections or plates having projections on their outer sides andperforations through the plates between the projections, and having bentends whereby the plates may be united to the lining by burning,substantially as described.

3. The combination with the lead lining of a filter-barrel, of filtersections or plates having projections on their outer sides andperforations through the plates between the projections, the plateshaving beveled longitudinal edges and bent ends, whereby the plates maybe united together and to the lead lining by burning, substantially asdescribed.

4. The combination with the lead lining of a filter-barrel having anopening, of filter sections or plates having projections on their outersides and perforations through the plates between the projections, theplates being adapted to be burned together at their edges and to theliningI at their ends, and a strengthening-plate adapted to extend overthe opening in the barrel and to be secured to a section by burning,substantially as described.

5. In a barrel-filter, a filter-section having IOC) IIO

stud projections on one side, tapering perforations through the bdy ofthe seetion between the projections, and provided with beveled edgeswhereby various sectionsmay be united to form a filter having a plain,perforated inner surface, substantially as described.

In testimony whereof I have signed my name to this speciication in thepresence of two subscribing witnesses.

j DE WITT C. MOSHER. l Witnesses:

J. H.J NELSON, CHAS.`N.-SNYDER.

